The DAB network outline defined in ETS 300 799 is shown below, which can be divided into several parts and managed by different entities separately. The different entities are: programme or data provider, service component provider, ensemble provider, and the transmissions network provider.
STI (Service Transport Interface) is the interface between the service component provider and the ensemble provider.
ETI (Ensemble Transport Interface) is the interface between the ensemble provider and transmission network provider.
N7611C supports measurements on STI and ETI interfaces by providing different input patterns: By Each Service Component and ETI (G.703).